The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
%\cite{Frey:IPAC2017-THPIK015} \bibitem{Frey:IPAC2017-THPIK015} M. Frey, D. Domont-Yankulova, K. Groß, J. Harzheim, P. Hülsmann, and H. Klingbeil, \textquotedblleft{Prototype Results of the ESR Barrier-Bucket System}\textquotedblright, % in \emph{Proc. IPAC2017}, pp. 4133--4135, % in \emph{Proc. IPAC2017}, Copenhagen, Denmark, May 2017, paper THPIK015, pp. 4133--4135, in \emph{Proc. 8th Int. Particle Accelerator Conf. (IPAC'17)}, Copenhagen, Denmark, May 2017, paper THPIK015, pp. 4133--4135, % ISBN: 978-3-95450-182-3, \url{http://jacow.org/ipac2017/papers/thpik015.pdf}, \url{https://doi.org/10.18429/JACoW-IPAC2017-THPIK015}, 2017.